October weather forecast
São João do Cariri, Brazil

October, the same as September, is another warm spring month in São João do Cariri, Brazil, with an average temperature varying between 29.9°C (85.8°F) and 20°C (68°F).

Temperature

The commencement of October notes an average high-temperature of a still moderately hot 29.9°C (85.8°F), exhibiting little difference from the previous month. In São João do Cariri, the average low-temperature during the month of October is a pleasant 20°C (68°F).

Heat index

The average heat index in October is calculated to be a sweltering 36°C (96.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In São João do Cariri, the average relative humidity in October is 74%.

Rainfall

In São João do Cariri, in October, during 14.9 rainfall days, 12mm (0.47") of precipitation is typically accumulated. Throughout the year, in São João do Cariri, there are 212.6 rainfall days, and 486mm (19.13") of precipitation is accumulated.

Daylight

The average length of the day in October is 12h and 16min.
On the first day of the month, sunrise is at 05:10 and sunset at 17:20. On the last day of October, in São João do Cariri, sunrise is at 04:58 and sunset at 17:20 -03.

Sunshine

In October, the average sunshine is 6.8h.

UV index

January through June, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In October, a daily maximum UV index of 6 leads to the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.